With the changes in the random tree, IRQF_SAMPLE_RANDOM is now ano-op; interrupt randomness is now collected unconditionally in a verylow-overhead fashion; see commit 775f4b297b. The IRQF_SAMPLE_RANDOMflag was scheduled to be removed in 2009 on thefeature-removal-schedule, so this patch is preparation for the finalremoval of this flag.